Device for lacquer transfer

Abstract

A device for lacquer transfer with a frame, transfer roller with a circumferential lateral wall, and nozzle for dispensing lacquer, the nozzle connected to the frame, wherein an outside contact surface of the lateral wall includes depressions. The transfer roller is mounted rotatably about an axis of rotation to the frame, the nozzle arranged for dispensing lacquer into depressions while the transfer roller is rotated. The transfer roller is configured to roll with the outside contact surface on a work surface of a work piece for transferring lacquer from the depressions to the work surface, the depressions formed and distributed over the outside contact surface in a predefined pattern having a main orientation direction. Efficiency of lacquer transfer can be increased as the pattern is arranged such that the main orientation direction extends other than perpendicular to the axis of rotation of the transfer roller.

1 . A device for lacquer transfer, comprising:
 a frame;   a transfer roller with a circumferential lateral wall; and   a nozzle for dispensing lacquer;   wherein the nozzle is connected to the frame,   wherein an outside contact surface of the lateral wall comprises a plurality of depressions,   wherein the transfer roller is mounted rotatably about an axis of rotation to the frame,   wherein the nozzle is arranged contactless to or in direct contact with the outside contact surface of the lateral wall for dispensing lacquer into respective depressions in the lateral wall while the transfer roller is rotated about the axis of rotation,   wherein the transfer roller is configured to roll with the outside contact surface of the lateral wall on a work surface of a work piece for transferring the lacquer from the depressions to the work surface of the work piece,   wherein the depressions are formed and distributed over the outside contact surface of the lateral wall according to a predefined pattern,   wherein the pattern has a main orientation direction, and   wherein the pattern is arranged such that the main orientation direction extends other than perpendicular to the axis of rotation of the transfer roller.   
     
     
         2 . The device according to  claim 1 , wherein the pattern is such that along the main orientation direction the depressions are in a repetitive manner or have a repetitively varying form. 
     
     
         3 . The device according to  claim 1 , wherein the pattern is such that along the main orientation direction the depressions have a constant form. 
     
     
         4 . The device according to  claim 1 , wherein the pattern is such that the depressions are grooves extending in the main orientation direction. 
     
     
         5 . The device according to  claim 1 , wherein the pattern is such that along the main orientation direction the depressions are in a streamlined manner. 
     
     
         6 . The device according to  claim 1 , wherein the pattern is such that along the main orientation direction the depressions are arranged to cause a minimum drag and/or maximum efficient flow when the lacquer has been transferred to an aircraft component. 
     
     
         7 . The device according to  claim 1 , wherein the pattern is such that the main orientation direction extends in parallel to the axis of rotation of the transfer roller. 
     
     
         8 . The device according to  claim 1 , wherein the pattern is such that the main orientation direction extends angled relative to both the axis of rotation of the transfer roller and a circumferential direction of the transfer roller. 
     
     
         9 . A method for producing an aircraft component, comprising:
 providing an aircraft component having a longitudinal axis and a work surface at its outer surface, to which lacquer is to be transferred;   providing a device for lacquer transfer comprising:
 a frame; 
 a transfer roller with a circumferential lateral wall; and 
 a nozzle for dispensing lacquer; 
 wherein the nozzle is connected to the frame, 
 wherein an outside contact surface of the lateral wall comprises a plurality of depressions, 
 wherein the transfer roller is mounted rotatably about an axis of rotation to the frame, 
 wherein the nozzle is arranged contactless to or in direct contact with the outside contact surface of the lateral wall for dispensing lacquer into respective depressions in the lateral wall while the transfer roller is rotated about the axis of rotation, 
 wherein the transfer roller is configured to roll with the outside contact surface of the lateral wall on a work surface of a work piece for transferring the lacquer from the depressions to the work surface of the work piece, 
 wherein the depressions are formed and distributed over the outside contact surface of the lateral wall according to a predefined pattern, 
 wherein the pattern has a main orientation direction, and 
 wherein the pattern is arranged such that the main orientation direction extends other than perpendicular to the axis of rotation of the transfer roller; and 
   transferring lacquer to the work surface by moving the device for lacquer transfer such that the transfer roller rolls over the work surface in a direction transverse to the longitudinal axis of the aircraft component.   
     
     
         10 . The method according to  claim 9 , wherein lacquer is transferred to the work surface by rolling the transfer roller in a direction of greatest extension of the aircraft component. 
     
     
         11 . An aircraft or aircraft component having an outer surface coated with structured lacquer produced using the method according to  claim 9 .